par Debue, Nicolas ;Van De Leemput, Cécile
Référence Annual Meeting of the Belgian Association for Psychological Sciences (BAPS) (28 mai 2013: Louvain-la-Neuve, Belgique)
Publication Non publié, 2013-05-28
Poster de conférence
Résumé : Based on cognitive load theory (Sweller, 1988), this poster focuses on the links between ergonomic design, website usability and the technology acceptance model (Davis, 1989). A study was conducted in a usability lab of an academic research center with 46 subjects. They were invited to perform information search tasks on a website in which ergonomic design had been manipulated. Efficiency and task efficacy were measured as well as objective (reaction time on a double task) and subjective (self-measurement scale) cognitive load. The results show that ergonomic design influences a person’s intention to use a website through the perception of utility and ease of use. Lower task efficacy explains partially why the non-ergonomic website is perceived by users as being more difficult to use. Cognitive load appears useful for the explanation of some of these relationships. Indeed, average reaction time is higher under ergonomic condition which could reflect a deeper task involvement and a greater perception of utility. These first results support the fact that design characteristics can impact perceptions about hypermedia and shed the light on the mechanisms involved